what does declare do in sql
-- MySQL
DECLARE variable_name datatype(size) [DEFAULT default_value];
-- Declaring a variable without specifying a default value will result it
-- in being a null value.
-- Declare is what allows us to create a variablewhat does declare do in sql
-- MySQL
DECLARE variable_name datatype(size) [DEFAULT default_value];
-- Declaring a variable without specifying a default value will result it
-- in being a null value.
-- Declare is what allows us to create a variablehow to declare a variable in sql
DECLARE @COURSE_ID AS INT, @COURSE_NAME VARCHAR (10);Copyright © 2021 Codeinu
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